Holding(s) in Company

John Wood Group PLC ("Company") NOTIFICATION OF MAJOR INTEREST IN SHARES 1. Name of Issuer JOHN WOOD GROUP PLC 2. Reason for Notification DISPOSAL OF VOTING RIGHTS 3. Full name of person(s) subject to notification obligation LEGAL & GENERAL GROUP Plc (L&G) 4. Full name of shareholder(s) (if different from 3 above) N/A 5. Date of the transaction and date on which the threshold is crossed or reached 04 MAY 2012 6. Date on which issuer notified 08 MAY 2012 7. Threshold(s) that is/are crossed or reached BELOW 3% 8. Notified details (A) Voting rights attached to shares Number of voting rights - Direct - N/A Number of voting rights - Indirect - NOT NOTIFIED - BELOW 3% (B) Financial Instruments N/A (C) Financial Instruments with similar economic effect to Qualifying Financial Instruments Resulting situation after the triggering transaction Type of financial instrument - N/A Exercise Price - N/A Expiration date - N/A Exercise/conversion period - N/A Number of voting rights instrument refers to - N/A Percentage of voting rights - Nominal - N/A Delta - N/A Total A + B + C Number of voting rights - NOT NOTIFIED Percentage of voting rights - BELOW 3% 9. Chain of controlled undertakings through which the voting rights and/or the financial instruments are effectively held, if applicable Legal & General Group Plc (Direct & Indirect) (Group) Legal & General Investment Management (Holdings) Limited (LGIMH) (Direct and Indirect) Legal & General Investment Management Limited (LGIM) Legal & General Group Plc (Direct) (L&G) (BELOW 3% = LGAS, LGPL & PMC) Legal & General Investment Management (Holdings) Limited (LGIMHD) (Direct) Legal & General Insurance Holdings Limited (Direct) (LGIH) Legal & General Assurance (Pensions Management) Limited (PMC) Legal & General Assurance Society Limited (LGAS & LGPL) Legal & General Pensions Limited (Direct) (LGPL) PROXY VOTING 10. Name of the proxy holder N/A 11. Number of voting rights proxy holder will cease to hold N/A 12. Date on which proxy holder will cease to hold voting rights N/A 13. Additional Information N/A 14. Contact name PAUL TOON 15. Contact telephone number 020 3124 3854 Name of authorised company official responsible for making this notification. ROBBIE BROWN, COMPANY SECRETARY 09 MAY 2012
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